Traditional Chinese medicine blusher and preparation process thereof
By using the process of combining Chinese medicine extracts such as cypress, Salvia miltiorrhiza, and rose with an oily matrix, the Chinese medicine blush was prepared, which solved the problem of floating powder of blush products and not fitting with dry skin, and achieved pure Chinese medicine coloring and color stability.
Patent Information
- Application Number
- CN202510498215.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2025-08-01
AI Technical Summary
Existing blush products mostly use chemical synthetic pigments, which have the problem of floating powder and easy to mix foundation, and are not suitable for dry skin.
Natural Chinese medicine extracts such as cypress, Salvia miltiorrhiza, and rose are used as the color source, combined with oily substrates (such as Vaseline, beeswax, pearl powder, etc.), and the relevant ingredients are extracted through a combination of hot and cold soaking to prepare Chinese medicine blush.
It realizes pure Chinese medicine coloring, avoids irritation of chemical pigments, and has an oily matrix that fits dry skin, solves the problem of floating powder, and has excellent color stability.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention belongs to the field of cosmetics, and particularly relates to a group of traditional Chinese medicine blushes and their preparation processes. Background Art
[0002] As one of the indispensable makeup products in cosmetics, blushes have made continuous progress in technological innovation and market development in recent years, and their colors and types are also very rich. Currently, blush products on the market are mainly divided into powder, liquid, cream and other types. Powder blushes are the most traditional form, with a light texture and easy to carry, suitable for daily makeup, but may not fit well on dry skin and are prone to powder floating. Liquid blushes are characterized by strong fluidity and natural makeup effects, but the dosage is not easy to control. Cream blushes have an oily and shiny feeling, strong ductility, but need to be completed before setting makeup, otherwise they are easy to mix with the base makeup into lumps. Oily blushes are mainly made of substances such as oil and wax, and their form is between powder and liquid blushes. They have a soft texture, can not only fit well with the skin, avoid the phenomenon of powder floating, but also are easy to use and do not easily damage the base makeup. The unique light sense brought by oily blushes can increase the transparency of the skin and create a highly shiny makeup. And oily substances are more likely to keep the skin moist, especially suitable for users with dry skin.
[0003] With the increasing attention of consumers to the ingredients of cosmetics, in terms of composition, the formulations of blush products are gradually moving closer to natural ingredients and plant extracts. Traditional Chinese medicine makeup products are favored by consumers because of the health, moisturizing, antioxidant and anti-inflammatory advantages brought by their natural ingredients. Some traditional Chinese medicine extracts have bright colors and have been used as natural dyes since ancient times, with strong dyeing ability. They not only have the advantages of moisturizing the skin and soothing the skin, but also can provide rich colors, and are high-quality raw materials for making beauty products such as blushes, worthy of in-depth development and utilization. Taking lithospermum extract as the main component and other traditional Chinese medicine extracts as the auxiliary, the preparation of a series of traditional Chinese medicine blushes with different colors using pure traditional Chinese medicine components has not been studied and reported. Summary of the Invention
[0004] The main problem to be solved by the present invention is to solve the problems that the existing blush colors mainly come from chemically synthesized pigments, and there are problems such as powder floating and easy mixing with the base makeup during use.
[0005] To solve the above problems, the present invention provides a group of traditional Chinese medicine blushes and their preparation processes.
[0006] The complexion brightening composition provided by the present invention includes a traditional Chinese medicine extract combination, a matrix and dry powder; the traditional Chinese medicine extract combination contains lithospermum extract, salvia miltiorrhiza extract and rose extract.
[0007] In the above composition, the mass ratio of the lithospermum extract, salvia miltiorrhiza extract and rose extract is (4 - 8):1:1.
[0008] In the above composition, 1) the preparation method of the lithospermum extract is as follows: Take 20 g - 40 g of lithospermum and place it in a 250 mL conical flask, add 80 mL of olive oil, heat-dip it in a 90 °C constant temperature water bath for 60 minutes, then cool it to room temperature, soak it for two weeks at 4 °C, and filter to obtain the lithospermum extract respectively; 2) The preparation method of the salvia miltiorrhiza extract is as follows: Take 20 g of salvia miltiorrhiza and place it in a 250 mL conical flask, add 80 mL of olive oil, heat-dip it in a 90 °C constant temperature water bath for 60 minutes, then cool it to room temperature, soak it for two weeks at 4 °C, and filter to obtain the salvia miltiorrhiza extract respectively; 3) The preparation method of the rose extract is as follows: Take 20 g of rose and place it in a 250 mL conical flask, add 80 mL of olive oil, heat-dip it in a 90 °C constant temperature water bath for 60 minutes, then cool it to room temperature, soak it for two weeks at 4 °C, and filter to obtain the rose extract respectively.
[0009] In the above composition, the matrix is selected from at least one of edible beeswax, candelilla wax, refined sunflower wax, lanolin, vaseline, and hyaluronic acid; the dry powder is selected from at least one of pearl powder or starch.
[0010] The composition can be composed of the following parts by mass: 30 - 36 parts of traditional Chinese medicine extract combination, 12 parts of wax, 24 parts of vaseline, 12 - 15 parts of pearl powder, and 12 - 15 parts of starch.
[0011] Furthermore, the wax is 8 parts of natural beeswax and 4 parts of candelilla wax.
[0012] In a specific embodiment, the composition is composed of the following parts by mass: 30 parts of traditional Chinese medicine extract combination, 12 parts of wax, 24 parts of vaseline, 15 parts of pearl powder, and 15 parts of starch; the wax is 8 parts of natural beeswax and 4 parts of candelilla wax.
[0013] In the above composition, the composition also contains glycerol and vitamin E, the mass fraction of glycerol is 1 part, and the mass fraction of vitamin E is 1 part.
[0014] The present invention provides a blush product, and the blush product includes the composition described above.
[0015] The present invention provides a method for preparing a blush, and the method comprises the following steps: 1) Preparation of traditional Chinese medicine extract combination: Add olive oil to the powders of Lithospermum erythrorhizon, Salvia miltiorrhiza, and Rosa rugosa for extraction to obtain Lithospermum erythrorhizon extract, Salvia miltiorrhiza extract, and Rosa rugosa extract. The traditional Chinese medicine extract combination consists of Lithospermum erythrorhizon extract, Salvia miltiorrhiza extract, and Rosa rugosa extract with a mass ratio of (4 - 8):1:1. 2) Add the matrix and dry powder to the traditional Chinese medicine extract combination prepared in step 1), and stir until completely melted to obtain mixture 1. The matrix is natural beeswax, candelilla wax, or / and petrolatum. The dry powder is pearl powder and starch. The parts by mass of the traditional Chinese medicine extract combination, matrix, and dry powder are as follows: 30 parts of the traditional Chinese medicine extract combination, 8 parts of natural beeswax, 4 parts of candelilla wax, 24 parts of petrolatum, 15 parts of pearl powder, and 15 parts of starch. 3) Add 1 part of glycerol and 1 part of vitamin E to mixture 1, and continue to stir evenly to obtain mixture 2. 4) Pour mixture 2 into the blush box while it is hot, and cool it at 4°C for half an hour to obtain the blush.
[0016] In the above method, 1) the preparation method of the Lithospermum erythrorhizon extract is as follows: Take Lithospermum erythrorhizon powder, add olive oil with a volume 2 - 4 times the weight of the powder, heat - soak in a constant - temperature water bath at 90°C for 60 minutes, then cool to room temperature, soak at 4°C for two weeks, and filter to obtain the Lithospermum erythrorhizon extract respectively. 2) The preparation method of the Salvia miltiorrhiza extract is as follows: Take Salvia miltiorrhiza powder, add olive oil with a volume 4 times the weight of the powder, heat - soak in a constant - temperature water bath at 90°C for 60 minutes, then cool to room temperature, soak at 4°C for two weeks, and filter to obtain the Salvia miltiorrhiza extract respectively. 3) The preparation method of the Rosa rugosa extract is as follows: Take Rosa rugosa powder, add olive oil with a volume 4 times the weight of the powder, heat - soak in a constant - temperature water bath at 90°C for 60 minutes, then cool to room temperature, soak at 4°C for two weeks, and filter to obtain the Rosa rugosa extract respectively.
[0017] The present invention discloses a blush based on traditional Chinese medicine extracts as the color source and its preparation process. Using natural medicinal materials such as Lithospermum erythrorhizon, Salvia miltiorrhiza, and Rosa rugosa as the core raw materials, relevant components are extracted through a process combining hot extraction and cold extraction, innovatively combining the natural and healthy characteristics of traditional Chinese medicine with the function of makeup. This blush adopts an optimized oil - wax matrix formula (containing petrolatum, beeswax, pearl powder, etc.), which not only ensures the color performance of the paste but also meets the extensibility and skin - fitting property of the blush. Compared with traditional makeup, its advantages are: (1) colored with pure traditional Chinese medicine, avoiding the irritation of chemical pigments; (2) the oily matrix fits dry skin and solves the problem of powder floating; (3) verified by temperature tests, the color stability is excellent. This invention provides a solution with both safety and functionality for the field of natural makeup, and is suitable for consumer groups pursuing healthy beauty makeup. Description of the Drawings
[0018] Figure 1 Blush made of different matrices.
[0019] Figure 2 Heat resistance (left figure) and cold resistance (right figure) results of blush prepared with different matrices.
[0020] Figure 3 Blush of different colors prepared with different combinations of traditional Chinese medicine extracts.
[0021] Figure 4 Stability results of blush of different colors. Detailed implementation manners
[0022] The present invention will be further described in detail below in conjunction with the specific implementation manners. The provided embodiments are only for clarifying the present invention, rather than limiting the scope of the present invention. The following provided embodiments can be used as a guide for those of ordinary skill in the art to make further improvements, and do not constitute any limitation to the present invention in any way.
[0023] The experimental methods in the following embodiments are all conventional methods, unless otherwise specified, and are carried out according to the techniques or conditions described in the literature in this field or according to the product instructions. The materials, reagents, etc. used in the following embodiments can be obtained from commercial channels unless otherwise specified.
[0024] Unless otherwise specified, the quantitative tests in the following embodiments are all set with three repeated experiments, and the results are averaged.
[0025] Lithospermum erythrorhizon, Salvia miltiorrhiza, and rose in the following embodiments were purchased from Bozhou Chinese Herbal Medicine Commodity Trading Center.
[0026] Olive oil in the following embodiments is from Guangzhou Baiyu Biotechnology Co., Ltd., CAS No.: 8001-25-0; petrolatum is from Guangzhou Baiyu Biotechnology Co., Ltd., CAS No.: 8009-03-8; glycerol is from Guangzhou Baiyu Biotechnology Co., Ltd., CAS No.: 56-81-5; oil-soluble vitamin E oil is from Guangzhou Baiyu Biotechnology Co., Ltd., CAS No.: 7695-91-2; rose essential oil is from Guangzhou Baiyu Biotechnology Co., Ltd., CAS No.: 8007-01-0; natural beeswax is from Guangzhou Baiyu Biotechnology Co., Ltd., CAS No.: 8012-89-3; candelilla wax is from Guangzhou Only You Cosmetics Raw Material Store, CAS: 8006-44-8; starch is from Beijing Yuweixiang Technology Co., Ltd., 9005-25-8; pearl powder is from Anhui Yihang Pharmaceutical Co., Ltd.
[0027] Example 1. Preparation of blush matrix 1. Extraction of combination of traditional Chinese medicine extracts Take 100 grams each of Lithospermum erythrorhizon (component A), Salvia miltiorrhiza (component B), and Rosa rugosa (component C), put them into a pulverizer to break them up, and then sieve them for later use.
[0028] Take 40 g of Lithospermum erythrorhizon and 20 g of Lithospermum erythrorhizon and place them in a 250 mL conical flask. Add 80 mL of olive oil to each respectively. Place the conical flask in a constant temperature water bath at 90 °C for heat extraction for 60 minutes. After completion, let it cool to room temperature, and then soak it for two weeks at 4 °C. Finally, filter it using double-layer gauze to obtain the following concentrations of traditional Chinese medicine components: Lithospermum erythrorhizon extract A1 (concentration 0.5 g / mL), Lithospermum erythrorhizon extract A2 (concentration 0.25 g / mL).
[0029] Take 20 g of Salvia miltiorrhiza and 20 g of Rosa rugosa and place them in a 250 mL conical flask. Add 80 mL of olive oil to each respectively. After placing the conical flask in a constant temperature water bath at 90 °C for heat extraction for 60 minutes. After completion, let it cool to room temperature, and then soak it for two weeks at 4 °C. Finally, filter it using double-layer gauze to obtain the following concentrations of traditional Chinese medicine components: Salvia miltiorrhiza extract B (concentration 0.25 g / mL), Rosa rugosa extract C (concentration 0.25 g / mL).
[0030] 2. Screening of blush matrix According to the characteristics of the blush cream, the main components of this experimental formula include a combination of traditional Chinese medicine extracts with colors, wax, petrolatum, and dry powder. Based on the results of previous experiments on the colors of the traditional Chinese medicine extracts prepared in step 1, the mass ratio of the combination of traditional Chinese medicine extracts used is A1:A2:B:C = 2:2:1:1. The composition of the wax is prepared according to the mass ratio of natural beeswax to candelilla wax of 2:1, and the selection of the dry powder is based on the mass ratio of starch to pearl powder of 1:1.
[0031] During the experiment, the matrix was optimized and improved by adjusting the mass ratios of the oily components, petrolatum, wax, and dry powder. Subsequently, a series of property verifications were carried out on the prepared blush matrix, including tests such as spreadability, cold resistance, and heat resistance, aiming to evaluate the overall performance of the matrix and thus select the best blush matrix formula.
[0032] The preparation method of the matrix is as follows: 1) Take out ten 50 mL beakers, sterilize them at high temperature, and then number each beaker. According to the ratio in the following table, pour the pre-prepared combination of traditional Chinese medicine extracts, wax, petrolatum, and dry powder into each beaker in the specified mass portions in sequence. Then, stir the mixture until it melts completely, ensuring that there are no white particles and powder residues left, and ensuring that the color is uniform to obtain mixture 1.
[0033] 2) Add one portion of glycerol and one portion of vitamin E to mixture 1, and continue to stir to ensure uniform mixing to obtain mixture 2.
[0034] 3) Pour the mixture 2 into an aluminum blush box while it is still hot, and place it in a refrigerator at 4°C for half an hour to cool. After completion, Chinese medicine oil-phase blushes numbered from 1 to 10 can be obtained.
[0035] Table 1. Selection of the matrix of Chinese medicine blushes (in parts by mass)
[0036] The results are as Figure 1 shown. Ten blush samples with different matrices are obtained for subsequent determination of blush properties.
[0037] Example 2. Detection of blush properties 1. Blush spreadability experiment The steps of the blush spreadability experiment are as follows: Weigh 0.1 g of the blush samples with different ratios in Example 1 with a spatula, and evenly apply them to the bottom of a weight weighing 100 g and with a diameter of 2.6 cm. Place the weight at the upper end of a glass plate with an inclination angle of 30°, so that the blush sample spreads on the glass plate under the action of the weight pressure until the blush at the bottom of the weight is completely spread. Measure the spreading distance of the sample.
[0038] The results are as shown in Table 2 below. Among them, the spreadability of the No. 4 matrix is the best, with a spreading distance of 34.2 cm, and the spreadability of the No. 8 matrix is the worst, with a spreading distance of 15.1 cm.
[0039] Table 2. Spreading distances of blushes with different matrices
[0040] 2. Heat and cold resistance experiments To evaluate the stability and durability of the blush at extreme temperatures, the steps of the heat and cold resistance experiments are as follows: Evenly divide the prepared blush samples into two parts, and place them in an incubator with a set temperature of 50°C and a refrigerator at -20°C respectively for 48 hours. During the experiment, it is necessary to ensure that the temperature control accuracy is ±1°C to ensure the accuracy and reliability of the tested environment. After 48 hours of exposure, observe whether the blush samples show phenomena such as softening, discoloration, cracking, etc., to evaluate the physical and chemical stability of the blush matrix under high and low temperature conditions.
[0041] The results are as Figure 2 shown: After 48 hours in an incubator at a temperature of 50°C, the No. 3, No. 4, No. 6, No. 7, and No. 9 blushes showed varying degrees of melting, indicating that the heat resistance of the No. 3, No. 4, No. 6, No. 7, and No. 9 matrices is not good; after 48 hours in a refrigerator at a temperature of -20°C, the No. 8 blush showed edge cracking, indicating that the cold resistance of the No. 8 matrix is not good. Finally, it is determined that the No. 1, No. 2, No. 5, and No. 10 matrices meet the requirements.
[0042] 3. Light Exposure Experiment To evaluate the appearance and quality of the medicinal blush under different light conditions, the specific experimental steps are as follows: The prepared medicinal blush samples are placed in environments with direct sunlight and without direct sunlight respectively, to observe the smoothness of the sample surface under different light conditions, and carefully check whether there are pores or attachments of foreign impurities, ensuring that its quality meets safety and usage standards.
[0043] The results of the light exposure experiment show that the blush surface is smooth, without pores and foreign impurities.
[0044] The above matrix screening results indicate that Matrix No. 1, No. 2, No. 5, and No. 10 meet the requirements, have better stability at different temperatures, and there are no situations such as melting and cracking. Combining with the results of the ductility experiment, the ductility lengths of Matrix No. 5 and No. 10 are significantly higher than those of Matrix No. 1 and No. 2. It can be comprehensively obtained that Matrix No. 5 and No. 10 are the matrices that meet the requirements in this screening, among which Matrix No. 10 is the best matrix, and the parts ratio of Matrix No. 10 is 30 parts of traditional Chinese medicine extract combination, 24 parts of vaseline, 15 parts of pearl powder, 15 parts of starch, 8 parts of natural beeswax, and 4 parts of candelilla wax.
[0045] 4. Blush Color Matching 1) Color Matching Take the following concentrations of traditional Chinese medicine components prepared: Lithospermum erythrorhizon extract A1 (concentration 0.5 g / mL), Lithospermum erythrorhizon extract A2 (concentration 0.25 g / mL ） , Salvia miltiorrhiza extract B (concentration 0.25 g / mL), Rosa rugosa extract C (concentration 0.25 g / mL). Make reasonable combinations according to the colors of their extracts to select three different concentration ratios, so as to obtain three different colored traditional Chinese medicine blushes. Among them, Ratio 1: The mass ratio of the traditional Chinese medicine extract combination is A1:B:C = 4:1:1; Ratio 2: The mass ratio of the traditional Chinese medicine extract combination is A1:A2:B:C = 2:2:1:1; Ratio 3: The mass ratio of the traditional Chinese medicine extract combination is A2:B:C = 4:1:1.
[0046] Select the above best blush matrix ratio (i.e., the ratio of Matrix No. 10), and pour the pre-prepared traditional Chinese medicine extract combination, wax, vaseline, and dry powder into each beaker in the specified mass parts in turn. The specific operation follows Step 2 in Example 1, and three different color-depth traditional Chinese medicine oil-phase blush samples can be obtained.
[0047] The color matching results are as Figure 3 shown: The blush made of Ratio 1 is wine red; the blush made of Ratio 2 is bright red; Ratio 3: The blush made is peach red.
[0048] 2) Color Stability Experiment Evenly divide the three-color blushes made in step 1) into two parts, labeled X-1 and X-2. Place each of the three blushes under different formulation ratios in an incubator at -20°C and 50°C for 48 hours, then take out each sample and detect whether its color has changed to evaluate the influence of different temperature environments on the color stability of the blush.
[0049] The results of the color stability experiment are as Figure 4 shown: Under the two conditions, there are no obvious differences in the colors of the 3 traditional Chinese medicine oil-phase blush samples, indicating that the color stability of this type of blush is good.
[0050] The above has detailed the present invention. For those skilled in the art, without departing from the purpose and scope of the present invention and without unnecessary experiments, the present invention can be implemented within a relatively wide range under equivalent parameters, concentrations, and conditions. Although specific embodiments of the present invention are given, it should be understood that the present invention can be further improved. In short, according to the principle of the present invention, this application intends to cover any modifications, uses, or improvements to the present invention, including changes made using conventional techniques known in the art that depart from the scope disclosed in this application.
Claims
1. A composition for brightening skin tone, characterized in that: The composition includes a combination of traditional Chinese medicine extracts, a matrix, and dry powder; the combination of traditional Chinese medicine extracts contains lithospermum extract, salvia miltiorrhiza extract, and rose extract.
2. The composition according to any one of claims 1, characterized in that, The mass ratio of the lithospermum extract, salvia miltiorrhiza extract, and rose extract is (4 - 8):1:
1.
3. The composition according to claim 1 or 2, wherein 1) The preparation method of the lithospermum extract is as follows: Take 20 g - 40 g of lithospermum and place it in a 250 mL conical flask, add 80 mL of olive oil, heat soak in a 90 °C constant temperature water bath for 60 minutes, then cool to room temperature, soak at 4 °C for two weeks, and filter to obtain the lithospermum extract respectively; 2) The preparation method of the salvia miltiorrhiza extract is as follows: Take 20 g of salvia miltiorrhiza and place it in a 250 mL conical flask, add 80 mL of olive oil, heat soak in a 90 °C constant temperature water bath for 60 minutes, then cool to room temperature, soak at 4 °C for two weeks, and filter to obtain the salvia miltiorrhiza extract respectively; 3) The preparation method of the rose extract is as follows: Take 20 g of rose and place it in a 250 mL conical flask, add 80 mL of olive oil, heat soak in a 90 °C constant temperature water bath for 60 minutes, then cool to room temperature, soak at 4 °C for two weeks, and filter to obtain the rose extract respectively.
4. The composition according to any one of claims 1-3, characterized in that, The matrix is selected from at least one of edible beeswax, candelilla wax, refined sunflower seed wax, lanolin, petrolatum, and hyaluronic acid; the dry powder is selected from at least one of pearl powder or starch.
5. The composition according to any one of claims 1-4, characterized in that, The composition is composed of the following parts by mass: 30 - 36 parts of the combination of traditional Chinese medicine extracts, 12 parts of wax, 24 parts of petrolatum, 12 - 15 parts of pearl powder, and 12 - 15 parts of starch; the wax is 8 parts of natural beeswax and 4 parts of candelilla wax.
6. The composition according to any one of claims 1-5, characterized in that, The composition also contains glycerol and vitamin E, the mass part of the glycerol is 1 part, and the mass part of the vitamin E is 1 part.
7. Blush product, characterized in that: Including the composition according to any one of claims 1 - 6.
8. A method for preparing blush, characterized in that, The method includes the following steps: 1) Preparation of the combination of traditional Chinese medicine extracts: Add olive oil to the powders of lithospermum, salvia miltiorrhiza, and rose for extraction to obtain lithospermum extract, salvia miltiorrhiza extract, and rose extract. The combination of traditional Chinese medicine extracts is composed of lithospermum extract, salvia miltiorrhiza extract, and rose extract with a mass ratio of (4 - 8):1:1; 2) Add the matrix and dry powder to the combination of traditional Chinese medicine extracts prepared in step 1), and stir until completely melted to obtain mixture 1; The matrix is natural beeswax, candelilla wax, and petrolatum; The dry powder is pearl powder and starch; The combination of traditional Chinese medicine extracts, matrix, and dry powder is as follows by parts by mass: 30 - 36 parts of the combination of traditional Chinese medicine extracts, 12 parts of wax, 24 parts of petrolatum, 12 - 15 parts of pearl powder, and 12 - 15 parts of starch; 3) Add 1 part of glycerol and 1 part of vitamin E to mixture 1, and continue to stir evenly to obtain mixture 2; 4) Pour mixture 2 into a blush box while it is hot, and cool at 4 °C for half an hour to obtain the blush.
9. The method according to claim 8, wherein 1) The preparation method of the said lithospermum extract is as follows: Take lithospermum powder, add olive oil with a volume 2 - 4 times that of the powder weight, heat - soak in a constant - temperature water bath at 90 °C for 60 minutes, then cool to room temperature, soak for two weeks under the condition of 4 °C, and filter to obtain the said lithospermum extract respectively; 2) The preparation method of the said salvia miltiorrhiza extract is as follows: Take salvia miltiorrhiza powder, add olive oil with a volume 4 times that of the powder weight, heat - soak in a constant - temperature water bath at 90 °C for 60 minutes, then cool to room temperature, soak for two weeks under the condition of 4 °C, and filter to obtain the said salvia miltiorrhiza extract respectively; 3) The preparation method of the said rose extract is as follows: Take rose powder, add olive oil with a volume 4 times that of the powder weight, heat - soak in a constant - temperature water bath at 90 °C for 60 minutes, then cool to room temperature, soak for two weeks under the condition of 4 °C, and filter to obtain the said rose extract respectively.